Organizing the layers alphabetically, but only for sublayers

Hi All,

Is there a possibility in Rhino to organize sublayers alphabetically, rather than the whole layer structure?

Main layer structure - simplified since it is a very large model with a lot of layers:

  • Underlayers
  • Existing situation
  • New situation variant 1
  • New situation variant 2

In here, for instance, the layer ‘Underlayers’ has a lot of different sublayers, which I want to sort alphabetically, while keeping the same main layer structure as before.

I can’t find any similar requests regarding this topic.